Patents by Inventor John P. Downing

John P. Downing has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • High-stability light source system and method
    Patent number: 9572218
    Abstract: A light source system that generates stable optical power over time and temperature in which a feedback control circuit is operative to receive a temperature signal and a sample signal and in response thereto generate a control signal to a driver circuit to maintain a power level of the light output substantially constant over an operative temperature range defined by Tmin and Tmax.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: February 14, 2017
    Assignee: USL Technologies, LLC
    Inventor: John P. Downing
  • HIGH-STABILITY LIGHT SOURCE SYSTEM AND METHOD
    Publication number: 20150146751
    Abstract: A light source system that generates stable optical power over time and temperature in which a feedback control circuit is operative to receive a temperature signal and a sample signal and in response thereto generate a control signal to a driver circuit to maintain a power level of the light output substantially constant over an operative temperature range defined by Tmin and Tmax.
    Type: Application
    Filed: November 18, 2014
    Publication date: May 28, 2015
    Inventor: John P. Downing